PTC Heating Element And An Electric Heating Device

Electric heating device, in particular for a motor vehicle, with a housing defining inlet and outlet openings and having several PTC heating elements, wherein each PTC heating element includes two insulating layers with a metallic coating provided on one side and a PTC element arranged therebetween which is each provided on oppositely disposed main side surfaces with a respective metallization which is electrically conductively connected to said coating of one of said insulating layers, wherein the metallization on one of said main side surfaces is assigned only to one potential for energizing said PTC element, and the metallization provided on the other of said main side surfaces is assigned only to the other potential for energizing said PTC element, wherein said metallization of said one main side surface of said PTC element and said metallization of said other main side surface of said PTC element are formed in such a way that the current path (P) through said PTC element is extended relative to the thickness (D) of said PTC element,

• wherein an outer surface facing away from said PTC element is exposed in said housing as an exposed surface for transferring heat to the medium to be heated or is at least, in part, in heat-conductive contact with a radiator element against which said medium to be heated flows.